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Abel's theorem in problems and solutions - School of Mathematics

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Contents<br />

Preface for the English edition by V.I. Arnold<br />

Preface<br />

Introduction<br />

1 Groups<br />

1.1<br />

1.2<br />

1.3<br />

1.4<br />

1.5<br />

1.6<br />

1.7<br />

1.8<br />

1.9<br />

1.10<br />

1.11<br />

1.12<br />

1.13<br />

1.14<br />

1.15<br />

Examples<br />

Groups <strong>of</strong> transformations<br />

Groups<br />

Cyclic groups<br />

Isomorphisms<br />

Subgroups<br />

Direct product<br />

Cosets. Lagrange’s <strong>theorem</strong><br />

Internal automorphisms<br />

Normal subgroups<br />

Quotient groups<br />

Commutant<br />

Homomorphisms<br />

Soluble groups<br />

Permutations<br />

2 The complex numbers 45<br />

2.1<br />

2.2<br />

2.3<br />

2.4<br />

Fields <strong>and</strong> polynomials<br />

The field <strong>of</strong> complex numbers<br />

Uniqueness <strong>of</strong> the field <strong>of</strong> complex<br />

numbers<br />

Geometrical descriptions <strong>of</strong> the<br />

complex numbers<br />

v<br />

ix<br />

xiii<br />

1<br />

9<br />

9<br />

13<br />

14<br />

18<br />

19<br />

21<br />

23<br />

24<br />

26<br />

28<br />

29<br />

31<br />

33<br />

38<br />

40<br />

46<br />

51<br />

55<br />

58

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